TY - JOUR AU - Arabi, Seyed Mostafa AU - Ranjbar, Golnaz AU - Bahrami, Leila Sadat AU - Vafa, Mohammadreza AU - Norouzy, Abdolreza PY - 2020 DA - 2020/02/03 TI - The effect of vitamin D supplementation on hemoglobin concentration: a systematic review and meta-analysis JO - Nutrition Journal SP - 11 VL - 19 IS - 1 AB - The purpose of this review was to investigate the effect of vitamin D supplements on hemoglobin concentration in subjects aged 17.5–68 years old; using randomized controlled trials (RCTs). SN - 1475-2891 UR - https://doi.org/10.1186/s12937-020-0526-3 DO - 10.1186/s12937-020-0526-3 ID - Arabi2020 ER -